id:A034913 - OEIS Search Results

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Primes such that q=(k*a(n)+1)/(a(n)-k), is prime for some k, q>a(n).

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3, 7, 13, 17, 23, 31, 47, 53, 67, 73, 79, 113, 137, 139, 151, 157, 163, 173, 193, 227, 257, 293, 307, 317, 337, 349, 353, 379, 401, 419, 457, 463, 467, 479, 487, 499, 541, 557, 577, 593, 599, 613, 617, 643, 653, 677, 691, 727, 733, 769, 787, 811, 829, 853 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Related to hyperperfect numbers of a certain form.`
	LINKS	`J. S. McCranie, A study of hyperperfect numbers, J. Int. Seqs. Vol. 3 (2000) #P00.1.3`
	EXAMPLE	`137 is a term since (132*137+1)/(137-132) = 3617 is prime`
	CROSSREFS	`Cf. A034914.` `Sequence in context: A063239 A040106 A034914 this_sequence A040148 A097957 A071774` `Adjacent sequences: A034910 A034911 A034912 this_sequence A034914 A034915 A034916`
	KEYWORD	`nonn`
	AUTHOR	`Jud McCranie (j.mccranie(AT)comcast.net)`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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